# A cart rolls down a hill. If the cart weighs 8.7 kg and the cart starts at a height of 3.0 m,...

## Question:

A cart rolls down a hill. If the cart weighs 8.7 kg and the cart starts at a height of 3.0 m, what is the final velocity of the cart?

## Principle of Conservation of Energy:

According to the principle of conservation of energy, if work done by the non conservative forces on a system is zero, the total mechanical energy of the system remains conserved. Energy of the system may convert from one form to the other, but the total always remains the same.

## Answer and Explanation:

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View this answer**Given data:**

- {eq}m = 8.7\ kg {/eq} is the mass of the cart

- {eq}h = 3\ m {/eq} is the initial height of the cart

Initially the total energy of the...

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